I applied for the Black around 1 November and then approved on the 9th, with no text or email. Called on the 10th to check status of the application and was told I was approved for the Black card with $X limit, which was below the minimum for the Black card and questioned the agent if it was a Black or Platinum card that's been approved and she insisted it's a Black card.
A few days later I get a text and email that I've been approved for the Platinum card, as I expected with the approved limit. To date I am still waiting for the card to arrive, having discussed with the Solutions team of the agent providing the wrong information from the agent and slow delivery of the card.
This compared to my experience applying for my AMEX Platinum Edge the week after applying for the Macquarie card, where it was approved and in my mailbox in 2 business days